User's Manual
Table Of Contents
- About This Document
- Contents
- 1 Safety Information
- 2 Product Overview
- 3 Device Installation
- 4 Cable Connections
- 4.1 Connecting Cables to the SmartLogger
- 4.1.1 Preparing Cables
- 4.1.2 Connecting a PE Cable
- 4.1.3 Connecting an RS485 Communications Cable
- 4.1.4 Connecting an MBUS Cable
- 4.1.5 Connecting a DI Signal Cable
- 4.1.6 Connecting the Output Power Cable
- 4.1.7 Connecting the AI Signal Cable
- 4.1.8 Connecting the DO Signal Cable
- 4.1.9 Connecting the Ethernet Cable
- 4.1.10 Connecting Fiber Jumpers
- 4.1.11 Installing a SIM Card and a 4G Antenna
- 4.1.12 Connecting the 24 V Input Power Cable
- 4.2 Connecting Cables to the SmartModule
- 4.2.1 Preparing Cables
- 4.2.2 Connecting the PE Cable
- 4.2.3 Connecting the Ethernet Cable
- 4.2.4 Connecting the 12 V Power Input Cable
- 4.2.5 Connecting the RS485 Communications Cable
- 4.2.6 Connecting the DI Signal Cable
- 4.2.7 Connecting the Output Power Cable
- 4.2.8 Connecting the AI Signal Cable
- 4.2.9 Connecting the PT Signal Cable
- 4.2.10 Connecting the 24 V Power Input Cable
- 4.1 Connecting Cables to the SmartLogger
- 5 System Operation
- 6 WebUI Operations
- 6.1 Introduction to WebUI
- 6.2 Device Commissioning
- 6.3 Parameter Settings
- 6.3.1 Setting User Parameters
- 6.3.2 Setting Parameters for Connecting to the Management System
- 6.3.3 Setting RS485 Communications Parameters
- 6.3.4 Setting Parameters for the Slave SmartLogger
- 6.3.5 Setting MBUS Parameters
- 6.3.6 Setting SUN2000 Parameters
- 6.3.7 Setting PID Module Parameters
- 6.3.8 Setting Power Meter Parameters
- 6.3.9 Setting EMI Parameters
- 6.3.10 Setting STS Parameters
- 6.3.11 Setting IEC103 Device Parameters
- 6.3.12 Setting Parameters for a Custom Device
- 6.3.13 Setting IEC104 Device Parameters
- 6.4 Power Grid Scheduling
- 7 Device Maintenance
- 8 FAQ
- 8.1 How Do I Connect the SmartLogger to the SUN2000 App or FusionSolar App?
- 8.2 How Do I Set FTP Parameters?
- 8.3 How Do I Set Email Parameters?
- 8.4 How Do I Change the SSID and Password of the Built-in WLAN?
- 8.5 How Do I Use DI Ports?
- 8.6 How Do I Use DO Ports?
- 8.7 How Do I Use the USB Port?
- 8.8 How Do I Change a Device Name?
- 8.9 How Do I Change the Communications Address?
- 8.10 How Do I Export Inverter Parameters?
- 8.11 How Do I Clear Alarms?
- 8.12 How Do I Enable the AI1 Port to Detect SPD Alarms?
- 8.13 Which Models of Power Meters and EMIs Are Supported by the SmartLogger?
- 8.14 How Do I Check the SIM Card Status?
- 9 Technical Specifications
- A Product User Lists
- B Domain Name List of Management Systems
- C Acronyms and Abbreviations
SmartLogger3000
User Manual
6 WebUI Operations
Issue 04 (2020-03-11)
Copyright © Huawei Technologies Co., Ltd.
98
PV String Access Detection
PV string access detection applies to large-scale commercial ground PV plants with PV
strings facing the same direction.
In AC or DC power limiting scenarios:
− If the PV string access type has not been identified, PV string access type will be
displayed as Disconnection. The PV string access type can be identified only when
the solar inverters restore to the non-power limiting state and the current of all
connected PV strings reaches the startup current.
− If the PV string access type has been identified, when a certain PV string connected
to the 2-in-1 terminals is lost, no alarm will be generated. If a certain PV string
connected to the 2-in-1 terminals is restored, the access type cannot be identified.
You can determine whether both 2-in-1 PV strings are restored only when the PV
string current reaches Startup current for 2-in-1 detection.
After setting the parameters, you can go to the Running Info. tab page to check whether
the PV string connection status is normal.
Table 6-2 Parameter description
Parameter
Parameter Description
PV String Access Detection
PV String Access Detection is set to Disable by default. After solar inverters
are connected to the power grid, set PV String Access Detection to Enable.
Startup current
When the current of all connected PV strings reaches the preset value, the PV
string access detection function is enabled.
NOTE
Startup current setting rules:
Startup current = I
sc
(S
tc
) x 0.6 (rounded up). For details about I
sc
(S
tc
), see the PV
module nameplate.
Default startup current (5 A): applicable to the scenarios where the short-circuit
current I
sc
(S
tc
) is greater than 8 A for the monocrystalline and polycrystalline PV
modules.
Startup current for 2-in-1
detection
When the current of a PV string reaches Startup current for 2-in-1
detection, the PV string is automatically identified as 2-in-1.
You are advised to retain the default settings.
PV string N access type
NOTE
N is the DC input terminal
number of the solar inverter.
Set this parameter based on the type of the PV string connected to DC input
terminal N of the solar inverter. Currently, the options are as follows:
Automatic identification (default value), Disconnection, Single PV string, and
2-in-1.
You are advised to retain the default value. If the value is incorrectly set, the
PV string access type may be incorrectly identified and alarms may be
generated by mistake for the PV string access status.
6.3.6.2 Tracking System
If a PV string uses a tracking system with a controller, set tracking system parameters on the
Tracking System tab page.